About wounded crew members I think it depends on How bad they are injured if they are critical they surely die, if its minor they probally make it.
I had 1 Flak gunner wounded when an Airplane dropped bombs close to my submarine...I saw the crew dissapear and I thought NOOOO!!!! but I looked in the crew managment and there it was with a red line around him so I put the medic in the same comparment and see what it does.
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